Google executive chairman Eric Schmidt has taken the unusual step of writing his own guide to switching from iPhone to Android.

The high-powered Google executive, who was also on the board at Apple as recently as 2009, recently took to Google+with a post entitled “Eric’s Guide: Converting to Android from iPhone.”

Schmidt opens by claiming that “Many of my iPhone friends are converting to Android,” before launching a stinging slap to the likes of HTC and LG by omitting them from his casual list of top Android brands.

He then embarks on a lengthy list of basic tips for new Android owners, including how to move your Gmail, contacts, and music across from an iPhone. The contacts part in particular is relatively in-depth, and could be useful for some.

At the other end of the useful scale we have tips on how to move your SIM card across (“you may need an adapter), and we particularly liked Schmidt’s advice on how to transfer your apps to your Android phone: “download in the Google Play Store all the applications you normally use (for example, Instagram).” Thanks Eric!

He also manages to take a pop at Safari with the following advice: “Be sure to use Chrome, not Safari; its safer and better in so many ways. And it’s free.”